Composition of matter.



UNETE ELMER ELLSWORTH BLACKMAN, OF LINCOLN, NEBRASKA.

COMPOSITION OF MATTER..

No Drawing.

To all whom it may concern:

Be it known that I, ELMER ELLSWORTH BLACKMAN, a citizen of the United States, residing at Lincoln in the county of Lancaster and State of Nebraska, have invented a new and useful composition of matter to be used in making porous materialssuch as wood, paper, brick, leather, artificial stone, plaster casts. &c.non-porous and for the purpose of preventing rust or oxidation in metal substances; also, for the purpose of preventing porous substances from absorbing water.

My composition consists of the following ingredients combined in the approximate proportions stated:

Naphtha 70 percent. Paraitin or mineral wax- 20 per cent. la ratlin or mineral oil 5 per cent. Powdered steatite 5 per cent.

The. ingredients are to be mixed in the following manner: Melt the wax; add the oil, then the powdered steatite, and thoroughly agitate continually until cold. This forms a SHbStHHCGJVlllCll will keep indefinitely and can be'readily mixed with the naphtha as required.

Any porous article, if saturated with this solution and wiped dry on the outer surface,

Specification of Letters Patent. Application filed July 24, 1909.

Patented Oct. is, 1910. Serial No. 509,399.

will, after the evaporation of the naphtha, be

nonporous at a point below the surface.

am aware that Wax is used to coat substances on the outside and thus make them nonporous by means of this coating, but I am not aware that wax has been used with naphtha, powdered steatite and oil, substantially as specified, to make porous substances nonporous by entering the substance and forming the nonporous condition below the surface or within the article treated.

claim as new and desire to secure by Let ters Patentz,

1. A composition of matter for making porous substances non-porous consisting of mineral wax, twenty. per cent; mineral oil, five per cent: powdered steatite five per cent; and naphtha, seventy per cent, mixed as described.

2. The method for compounding a composition of matter for making porous substances non-porous. consisting in first melting the mineral wax. addin, the mineral oil, then the powdered stcatite and thoroughly agitating the same until cold and last mixing 'the aforesaid with naphtha as required.

ELMER ELLSWORTH BLACKMAN. Vi tnesses \VILLIAM EVERE'IT HARMAN, Anoison E. SHELDON. 

